CN220492222U - Electric connecting device - Google Patents
Electric connecting device Download PDFInfo
- Publication number
- CN220492222U CN220492222U CN202321940741.9U CN202321940741U CN220492222U CN 220492222 U CN220492222 U CN 220492222U CN 202321940741 U CN202321940741 U CN 202321940741U CN 220492222 U CN220492222 U CN 220492222U
- Authority
- CN
- China
- Prior art keywords
- conductor
- connection device
- terminal
- electrical connection
- reinforcement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004020 conductor Substances 0.000 claims abstract description 47
- 238000003466 welding Methods 0.000 claims abstract description 31
- 230000002787 reinforcement Effects 0.000 claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 8
- 239000003351 stiffener Substances 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000002788 crimping Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 5
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The utility model discloses an electric connection device, which comprises a terminal, a conductor and a reinforcement, wherein the conductor is provided with a flat part, the reinforcement is coated on at least the circumferential surface of the flat part to form the connection device, and the reinforcement is flush with the axial end surface of the flat part; the terminal is abutted with the axial end face of the connecting device and welded by using a friction stir welding process. The reinforcement is coated on the outer peripheral surface of at least the flat portion to form the connecting device after being crimped or welded, so that the connection strength of friction stir welding between the terminal and the connecting device is improved.
Description
Technical Field
The utility model relates to the technical field of electric connection, in particular to an electric connection device.
Background
In an electric energy transmission medium, friction stir welding is a solid phase connection method, the connection of dissimilar materials can be realized by the friction stir welding method, and the friction stir welding has the characteristics of small crystal grains, good tensile property and bending property and is a preferable welding mode. However, there are problems that the strength is not sufficient at present and that when the conductor is a multi-core round wire, the welding with the terminal by friction stir welding is not possible.
Therefore, a new structure is required to solve the above-mentioned problems.
Disclosure of Invention
The object of the utility model is to provide an electrical connection device comprising a terminal, a conductor and a reinforcement,
the conductor is provided with a flat part, the reinforcement piece is coated on at least the circumferential surface of the flat part to form a connecting device, and the reinforcement piece is flush with the axial end face of the flat part;
the terminal is abutted with the axial end face of the connecting device and welded by using a friction stir welding process.
Optionally, the stiffener is crimped or welded to the flattened portion.
Optionally, the conductor is formed by twisting a plurality of core wires, and an insulating layer is coated at least on the periphery of the conductor.
Optionally, the stiffener encapsulates the flattened portion and at least a portion of the insulating layer.
Optionally, the material of the conductor and the reinforcement is aluminum or aluminum alloy, and the material of the terminal is copper or copper alloy.
Optionally, the conductor is different from the stiffener in material.
Optionally, the thickness of the junction of the terminal and the connecting device is the same as the thickness of the axial end of the connecting device.
Optionally, the width of the junction of the terminal and the connecting device is the same.
Optionally, the conductor is a circular conductor, and the connecting device is formed by sleeving a cylindrical reinforcing piece at the end part of the circular conductor and then crimping.
The utility model has the following technical effects:
1. when the conductor may be a multi-layered or solid ribbon-shaped conductor, the reinforcement is wrapped around at least the outer peripheral surface of the flat portion and crimped or welded to form the connection means, thereby improving the strength of the friction stir welded connection between the terminal and the connection means.
2. When the conductor is a multi-core round wire, the reinforcing member is wrapped on the outer peripheral surface of the end part of the multi-core round wire, and then is crimped or welded to form a connecting device, and the conductor after being crimped or welded forms a flat part. The friction stir welding connection process between the multi-core conductor and the terminal is effectively realized, and the problem that the multi-core conductor cannot be in friction stir welding with the flat terminal is solved
Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.
FIG. 1 is a schematic view of a connecting device according to the present utility model;
FIG. 2 is a schematic view of the connection structure of the reinforcement and the conductor according to the present utility model;
fig. 3 is a schematic structural view of the electrical connection device of the present utility model.
The figures are marked as follows:
100. a terminal; 200. a connecting device;
20. a conductor; 21. a flat portion; 30. a reinforcing member; 40. an insulating layer; 50. and (3) welding seams.
Detailed Description
Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
The electrical connection device 200 shown in fig. 1-3 comprises a terminal 100, a conductor 20 and a reinforcement member 30, wherein the conductor 20 is provided with a flat part 21, the reinforcement member 30 is coated on at least the circumferential surface of the flat part 21 to form the connection device 200, and the reinforcement member 30 is flush with the axial end surface of the flat part 21;
the terminal 100 is butted with an axial end face of the connection device 200 and welded using a friction stir welding process.
In one embodiment, the conductor 20 may be a multi-layered or solid ribbon-shaped conductor, the end of the conductor 20 is a flat portion 21, and the reinforcement member 30 is wrapped on at least the outer peripheral surface of the flat portion 21 to form the connection device 200 after being crimped or welded, so as to improve the connection strength of friction stir welding between the terminal 100 and the connection device 200. In such an embodiment, the stiffener 30 may be a sheet-like conductor 20.
In another embodiment, the conductor 20 is a multi-core round wire, particularly a multi-core stranded round wire, and the reinforcement member 30 may be a sheet-shaped conductor, which is crimped or welded after being wrapped around the outer peripheral surface of the end portion of the multi-core round wire to form the connection device 200. The conductor 20 after crimping or welding forms a flat portion 21. In this embodiment, the reinforcement member 30 may also be a cylindrical sleeve that is crimped or welded around the end of the circular conductor 20 to form the connection device 200. With the structure, the friction stir welding connection process between the multi-core conductor 20 and the terminal 100 is effectively realized, and the problem that the multi-core conductor 20 cannot be subjected to friction stir welding with the flat terminal 100 is solved. The terminal 100 has a single shape, and the welded electric connection device 200 can be subjected to bending, riveting and other processes, so that the welding adaptation capability between the terminal 100 and the conductor 20 is greatly improved, and the welding process of friction stir welding has no smoke, no air hole, no welding wire or protective gas, and can ensure a good production environment.
As shown in fig. 2, before the axial end surface of the connection device 200 is welded to the terminal 100, a machine cutting method may be used to ensure that the axial end surface of the connection device 200 is flush, and then the connection device is butted to the terminal 100 for friction stir welding.
In one embodiment, the material of the conductor 20 and the reinforcement 30 is aluminum or aluminum alloy, and the material of the terminal 100 is copper or copper alloy. The welding of the reinforcement 30 to the conductor 20 may be, in particular, ultrasonic welding, resistance welding, soldering or similar welding methods.
As shown in fig. 2, the outer circumference of the conductor 20 is covered with an insulating layer 40, and the reinforcement 30 covers the flat portion 21 and at least part of the insulating layer 40.
In a preferred embodiment, the material of the conductor 20 is different from that of the reinforcement member 30, and the reinforcement member 30 may be made of an aluminum alloy, preferably an aluminum sleeve, which is crimped or welded to form the connection device 200 after being sleeved on the end of the circular conductor 20.
In a specific application, in order to ensure a better welding effect between the terminal 100 and the connecting device 200, the thickness of the butt joint between the terminal 100 and the connecting device 200 is the same as the thickness of the axial end of the connecting device 200. The width of the junction between the terminal 100 and the connecting device 200 is the same.
As shown in fig. 3, a weld 50 is further disposed between the terminal 100 and the connecting device 200, the weld 50 is formed by rotation and pressure welding of a stirring pin of a friction stir welding device, and the stirring pin and a shaft shoulder thereof are fully friction-stirred with the terminal 100 and the connecting device 200, so that the weld 50 with forged metal structure and fine micro-grains is formed, and the welding strength can be effectively improved.
While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.
Claims (9)
1. An electric connection device is characterized by comprising a terminal, a conductor and a reinforcement,
the conductor is provided with a flat part, the reinforcement piece is coated on at least the circumferential surface of the flat part to form a connecting device, and the reinforcement piece is flush with the axial end face of the flat part;
the terminal is abutted with the axial end face of the connecting device and welded by using a friction stir welding process.
2. The electrical connection device of claim 1, wherein the stiffener is crimped or welded to the flattened portion.
3. The electrical connection device of claim 1, wherein the conductor is formed of multi-core wire stranded and an insulating layer is coated at least on an outer periphery of the conductor.
4. The electrical connection device of claim 3, wherein the stiffener encapsulates the flattened portion and at least a portion of the insulating layer.
5. The electrical connection device of claim 1, wherein the conductors and the stiffener are aluminum or an aluminum alloy and the terminals are copper or a copper alloy.
6. The electrical connection apparatus of claim 1, wherein the conductor is a different material than the stiffener.
7. The electrical connection device of claim 1, wherein the thickness of the terminal at the interface with the connection device is the same as the thickness of the connection device axial end.
8. The electrical connection device of claim 1, wherein the width of the terminal at which it interfaces with the connection device is the same.
9. The electrical connection device of claim 1, wherein the conductor is a circular conductor, and the connection device is formed by crimping a cylindrical reinforcing member around an end of the circular conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321940741.9U CN220492222U (en) | 2023-07-24 | 2023-07-24 | Electric connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321940741.9U CN220492222U (en) | 2023-07-24 | 2023-07-24 | Electric connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220492222U true CN220492222U (en) | 2024-02-13 |
Family
ID=89841449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321940741.9U Active CN220492222U (en) | 2023-07-24 | 2023-07-24 | Electric connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220492222U (en) |
-
2023
- 2023-07-24 CN CN202321940741.9U patent/CN220492222U/en active Active
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| GR01 | Patent grant |